Q82. A 25-year-old female presents to the emergency departme…

Q82. A 25-year-old female presents to the emergency department after a motor vehicle accident. She has multiple fractures that include the pelvis and femur.  She has no significant health history except mild asthma and seasonal allergies. Her home medications include a daily oral contraceptive and cetirizine as needed. Why does the nurse identify the client as being at risk for deep vein thrombosis (DVT)?